Outsoftware

Outsoftware · Digital preservation · 2016–present

The collection preserves original media and their copy protection. Supplied backup copies are also used to document the software and are identified in the screenshot captions.

Digital preservation / Sinclair QL

Romberg Integration — R. D. Harding / M. Lindroos

Floppy IMG derived from archived files. Mount as FLP1 and boot using Minerva 1.98a1 ROM, 640 KiB emulator RAM and Toolkit II 2.32. Integrated cos(x) from 0 to 1 with five halvings: 0.841471, matching sin(1) at the displayed precision. Displayed actual error 0 and estimated error 1.131225e−9. One entry covers this numerical-utility family; other modules are not counted separately. Basic functional check in sQLux, not full validation or a physical-hardware test. Audio untested. ROMs are not included.

Romberg Integration — R. D. Harding / M. Lindroos — Integrated cos(x) from 0 to 1 with five halvings: 0.841471, matching sin(1) at the displayed precision. Displayed actual error 0 and estimated error 1.131225e−9. One entry covers this numerical-utility family; other modules are not counted separately.
Integrated cos(x) from 0 to 1 with five halvings: 0.841471, matching sin(1) at the displayed precision. Displayed actual error 0 and estimated error 1.131225e−9. One entry covers this numerical-utility family; other modules are not counted separately. · sQLux
Source: romberg-integration-r-d-harding-m-lindroos.img

romberg-integration-r-d-harding-m-lindroos.img

Derived Working IMG selected by the curator. This is not a public-domain declaration; rights remain with their respective holders.

Download Working IMG720 KB · IMG

Platform
Sinclair QL
SHA-256
8706371a5916359eaec2edc043ab6c0de84df385f01b941d5166c63a2685249e
File timestamp

Timestamp stored in the original ZIP; timezone unspecified. It does not certify the dump acquisition date.

Media contents (3)
QDOS floppy directory
Original nameTypeByte
bootQL file274
main_basQL file4.172
original_basQL file4.172

Names are preserved as recorded on the medium. “≤” indicates allocated space, not the exact file length.